A solution of hydrogen peroxide was diluted 20.0 times. A 25.0 cm3 portion of the diluted solution was acidified and titrated against mol dm‐3 potassium manganate (VII) solution. 45.7 cm3 of the oxidant were required. Calculate the concentration of the hydrogen peroxide solution a) in mol dm‐3 and b) the volume concentration. [5]
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(b) 24.3 cm3 of 0.0200 mol dm–3 KMnO4 reacted with 20.0 cm3 of an iron(II) solution acidified ... (b) 50.0 cm3 of solution of hydrogen peroxide were diluted to 1.00 dm3 with water
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